Search a number
-
+
40772189 = 251162439
BaseRepresentation
bin1001101110001…
…0001001011101
32211201102221002
42123202021131
540414202224
64013520045
71003362233
oct233421135
984642832
1040772189
1121018827
12117a3025
1385a7173
1455b4953
1538a59ae
hex26e225d

40772189 has 4 divisors (see below), whose sum is σ = 40934880. Its totient is φ = 40609500.

The previous prime is 40772183. The next prime is 40772191. The reversal of 40772189 is 98127704.

40772189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40772189 - 220 = 39723613 is a prime.

It is a super-3 number, since 3×407721893 (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40772183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80969 + ... + 81470.

It is an arithmetic number, because the mean of its divisors is an integer number (10233720).

Almost surely, 240772189 is an apocalyptic number.

It is an amenable number.

40772189 is a deficient number, since it is larger than the sum of its proper divisors (162691).

40772189 is a wasteful number, since it uses less digits than its factorization.

40772189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162690.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 40772189 is about 6385.3104074900. The cubic root of 40772189 is about 344.1818856278.

The spelling of 40772189 in words is "forty million, seven hundred seventy-two thousand, one hundred eighty-nine".

Divisors: 1 251 162439 40772189